Fig. 1

Chronological changes in QRS complex morphology recorded on a patient monitor (CM5) during anesthesia. a Immediately before anesthesia induction. b 20 min after the start of anesthesia. c End of surgery. d During extubation
Chronological changes in QRS complex morphology recorded on a patient monitor (CM5) during anesthesia. a Immediately before anesthesia induction. b 20 min after the start of anesthesia. c End of surgery. d During extubation